The Open Source Cartridge Reader (OSCR) is a versatile tool designed to help preserve video game cartridges and save data. Developed by Sanni and the community, this device allows users to back up ROM files and save games from a wide range of vintage consoles. Here's a detailed look at its features and benefits:Key FeaturesSupported Systems: The OSCR supports numerous systems, including NES, SNES, Nintendo 64, Game Boy, Game Boy Color, Game Boy Advance, Sega Genesis, and more. Additional systems can be supported with adapters. Functionality: It enables users to dump ROMs and save files directly to an SD card without
Source is here if you want it to feel more open source by building it yourself. See if you can do it for cheaper after factoring in your labour time.
Yeah at least with their parts lists the material cost is ~$134. So even the places selling kits for $150 are offering a pretty good deal for putting it all in a box for you. ( I assume they’re able to make some savings buying in bulk but still)